Home / 221,092.21-331,619.78-79,042.46

Finding the Fourth Proportional to 221,092.21, 331,619.78 and 79,042.46

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Solution

The fourth proportional to 221,092.21, 331,619.78 and 79,042.46 is: 118,557.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,092.21 : 331,619.78 = 79,042.46 : x
  2. Step 2: Convert to fraction form
    221,092.21/331,619.78 = 79,042.46/x
  3. Step 3: Cross multiply
    221,092.21x = 331,619.78 × 79,042.46
  4. Step 4: Simplify right side
    221,092.21x = 26,212,043,195.86
  5. Step 5: Solve for x
    x = 26,212,043,195.86/221,092.21
  6. Step 6: Final answer
    x = 118,557.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.